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Weekdays from 1 to 2 p.m.

Edgar B. Herwick III hosts GBH’s newest show, The Curiosity Desk, weekday afternoons from 1 to 2 p.m. Tune in for conversations, insights and profundities about the world we live in.

We want your input. Have something you’re curious about? Submit your questions via the form below, or email curiositydesk@wgbh.org for the chance to hear them answered on the show.

Watch The Curiosity Desk on the GBH News YouTube Channel or listen daily on GBH.org or 89.7 FM. To weigh in during the show, call or text at 877-301-8970.

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Listen to previous shows

  • How Can Massachusetts Stay Climate Resilient?

    July 22, 2026We’re exploring what it means to be resilient in the face of climate change, in Massachusetts and New England. Joining is Katherine Antos from Mass.' Executive Office of Energy and Environmental Affairs, and Emma Gildesgame, Climate Adaptation Director with The Nature Conservancy. Why do the best ideas come to us in the shower? Edgar asks Jonathan Schooler, a Distinguished Professor of Psychological and Brain Sciences at UC Santa Barbara. It’s “Ask The Remodeler,” with Mark Philben from Charlie Allen Renovations. This week we’re looking at how to beat summer heat – Mark joins with Phil Baldwin, President of CPS Heating & Cooling based in Westborough.
  • Why Are Fireflies So Lit?

    July 21, 2026 First up, UMass Lowell biologist Sarah Gignoux-Wolfsohn explains how exactly algae and micro-organisms can make lakes and ponds unsafe for swimming. Then, it's another round of Four Things to Know, with Gal Tziperman Lotan from the GBH Daily newsletter. Lastly, we end on fireflies with help from Avalon Owens and Abby Robinson at the Roland Institute’s Owens Lab at Harvard. They’ll explain how the little guys operate & how light pollution impacts their ability to thrive.
  • The Impossible Curiosity Desk: A Plant-Based Special

    July 20, 2026 We begin with Jean-Luc Pierite and Lux Trevelyan from the North American Indian Center of Boston, for a conversation about growing & fostering tree canopies in and around Boston.Edgar learns about new research on Fit Bit-style plant sensors from Tufts researcher Sameer Sonkusale. We end our special meeting sound designer and musician Skooby Laposky, who creates compositions using electrical currents in plants.
  • Bonus Interview: Why Can't I Fall Asleep?

    In this bonus interview, Edgar meets Mass. General Hospital sleep researcher Chenlu Gao, to help answer a listener-submitted curiosity question how it's possible to be totally exhausted and still unable to fall asleep. If you’ve got something you’re curious about, we'd love to hear from you! Head to The Curiosity Desk landing page at GBHNews.org and fill out the question form.
  • Why Is The Sky Yellow?

    July 17, 2026Arun Rath is guest hosting today! We talk briefly with Mathew Barlow, a Professor of Climate Sciences at Umass Lowell, about this week’s wildfire smoke & why the sky turned yellow. GBH’s Renuka Balakrishnan joins with Emily Schario from The B-Side for ICYMI. They’ll talk about the best local swimming pools, the 22nd annual Sand Sculpting Festival on Revere Beach, and cyclosporiasis ruining summer salad season. Why has the vinyl record endured? And what’s the value of physical media in an era of online disinformation? Arun talks with Joan Donovan from the Critical Internet Studies institute, this week with Tony Goddess from Mystery Train Records in Gloucester. Arun talks Indigenous history with Aquinnah Wampanoag singer/songwriter Thea Hopkins & Cerise Lim Jacobs from White Snake Projects, around a new interactive freedom trail experience for America 250.